When the head of a penis is rubbed in between the flaps, or labia majoras, of the vagina till orgasm, in which the penis will snap up facing away from the female and spray semen over her body.
"Did you fuck Stacy last night?"
"We only had a merecat geyser ".
"So you didn't get inside?"
"Exactly ".
The act of urinating while your penis is fully erect, referred to also as Mount St. Urin, Morning wood surprise, or uncorking the yellow.
Dude, I woke up this morning at full mast and unleashed one helluva geyser under pressure
A sexual move in which liquid nitrogen is inserted into ones anus and in response, they fart out a large cloud of cold air, kind of like a geyser.
Person 1: “Yo dude what’d you do last night?”
Person 2: “Oh it was amazing! Me and my girl tried the Arctic Geyser.”
When your getting head, and you cum while being deep throated, and she doesn't expect it and your cum squirts out her nostril.
I gave you old step mom a Rhino Geyser last night. Here's the video to prove it.
the act of urinating with an erection
With a raging boner and a full bladder, the king had no choice but to do a handstand for his bone geyser
Insert mentos and diet coke into butt hole and let the mixture spray in your face.
My face looks slightly tanner due to the Poo geyser I received last night.